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알루미늄 알콕사이드 전구체로부터 합성된 감마 알루미나의 합성조건이 그 물성에 미치는 영향
Effects of Synthesis Conditions on Physical Properties of Υ-Alumina Made from Al-alkoxide Precursors
HWAHAK KONGHAK, June 1994, 32(3), 469-475(7), NONE
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Abstract
알루미늄 알콕사이드를 합성하고 이를 sol-gel법으로 가수분해시켜 얻은 알루미늄 수화물을 소성하여 감마 알루미나를 제조하였다. 알루미늄 알콕사이드 합성시 알코올의 종류를 변화시키므로서 알킬기가 감마알루미나의 물성에 미치는 영향을 관찰하였으며, 알루미늄 알콕사이드의 가수분해시 희석제인 벤젠과 물의 사용량, 해리제인 염산의 함량을 변화시키므로써 이들 가수분해조건이 감마알루미나의 비표면적과 세공부피에 미치는 영향을 조사하였다.
Al-alkoxides were prepared and hydrolyzed by sol-gel method to get Al-hydroxides. Al-hydroxides were calcined to form Υ-alumina. The effects of alkyl groups of Al-alkoxide prepared from different alcohols on the properties of Υ-alumina were observed. The effect of hydrolysis conditions on the specific surface area and pore volume of Υ-alumina were examined with varing the contents of benzene, water and HCl.
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deBoer JH, "The Structure and Properties of Porous Materials," Butterworth, London, 68 (1958)
Adkins H, Proc. Roy. Soc. London, 88, 2175 (1921)
Yoldas BE, J. Mater. Sci., 10, 1856 (1975)
Kumagi M, Messing GL, J. Am. Ceram. Soc., 68, 500 (1985)
